Fluorine-Matrix Nanogranular Material for Faraday Rotation and Transmittance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing nanogranular structure materials lack magneto-optical properties that are distinct from those already available, limiting their applications and functionalities.
Innovation Solution
A nanogranular structure material comprising a fluorine compound matrix and metal oxide nanoparticles, with specific atomic ratios of elements such as Fe, Co, Ni, Li, Be, Mg, Al, Si, Ca, Sr, Ba, Bi, and rare earth elements, is developed. This material is produced through a heat-treatment process in an oxygen-containing atmosphere, transforming the primary nanogranular structure into a secondary one with enhanced properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing nanogranular structure materials are used, then the material structure is simple and easy to manufacture, but the magneto-optical properties are limited and not distinct from existing materials
Solution Approach 1:
The patent creates a composite nanogranular structure material combining metal nanoparticles (Fe, Co, Ni) with fluorine compound matrix (M-F) and metal oxide nanoparticles (L-O), forming a multi-component system L-M-F-O that achieves distinct magneto-optical properties not available in existing single-phase materials
Solution Approach 2:
The patent optimizes specific atomic ratio parameters (L: 0.03-0.50, M: 0.03-0.30, F: 0.06-0.65, O: 0.04-0.50) to achieve enhanced magneto-optical properties including improved light transmittance and Faraday rotation angle in the optical communication wavelength band
2Adaptability or versatility
If heat treatment is performed at higher temperatures to enhance magneto-optical properties, then the Faraday rotation angle improves, but the material structure may become unstable or nanoparticles may aggregate
Solution Approach 1:
The patent specifies an optimized heat treatment temperature range of 300-800°C that achieves enhanced magneto-optical properties including improved Faraday rotation angle while maintaining nanoparticle dispersion stability and preventing aggregation through controlled thermal processing
3Adaptability or versatility
If metal nanoparticles are used in the matrix, then the magneto-optical effect is enhanced, but the light transmittance decreases
Solution Approach 1:
The patent develops a composite structure where metal nanoparticles are dispersed in a fluorine compound matrix combined with metal oxide nanoparticles, creating a multi-phase system that simultaneously enhances magneto-optical effect and maintains light transmittance in the optical communication wavelength band
Solution Approach 2:
The patent creates local regions with different properties: metal nanoparticle clusters provide strong magneto-optical effect while the fluorine compound matrix and metal oxide nanoparticles provide optical transparency, achieving spatial differentiation of functional properties
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The resulting nanogranular structure material exhibits improved light transmittance and Faraday rotation angle, particularly in the optical communication wavelength band, enabling its use in miniaturized optical isolators and integrated circuits.
Implementation Method 1
heat-treating, in a temperature range of 300 to 800° C. in an oxygen-containing atmosphere, a primary nanogranular structure material composed of a matrix having a composition represented by M-F and metal nanoparticles dispersed in the matrix and having a composition represented by L to provide the nanogranular structure material as a secondary nanogranular structure material
Implementation Method 2
The nanogranular structure material of the present invention has a composition represented by L-M-F—O... exhibits improved light transmittance and Faraday rotation angle, particularly in the optical communication wavelength band
Data Source
AI summary
An object of the present invention is to provide a new nanogranular structure material having magneto-optical properties different from those of existing nanogranular structure materials, and a method for producing the same. The nanogranular structure material has a composition represented by L-M-F—O wherein L is at least one element selected from the group consisting of Fe, Co, and Ni, and M is at least one element selected from the group consisting of Li, Be, Mg, Al, Si, Ca, Sr, Ba, Bi, and rare earth elements, F is fluorine, and O is oxygen. The nanogranular structure material according to the present invention is composed of a matrix formed of a fluorine compound having a composition represented by M-F and metal oxide nanoparticles dispersed in the matrix and having a composition represented by L-O.